Re: [iSVG] Split bug in Adobe SVG Viewer?

[Robin B. <ro...@kn...>]

On Tuesday 18 September 2001 20:19, Antoine Quint wrote:
> > Have you turned on notification of new subscriptions ? I'd
> > like to know about
> > it if Bob joins ;-)
>
> Yes, if Bob is DiBlasi, his posts will be moderated!!!

I was thinking about the river one. But yes, moderate all the gremlins fr=
om=20
svg-dev.

> > If you don't mind testing the version I gave you that adds a
> > method to the
> > String interface it'd be great. I'd love to know whether that
> > approach works.
> > Using that we'd be able to have very readable and clean code.
>
> Well, if there is no way to do it with split, then it's going back in
> the code!

Yes, but I was thinking specifically about the first one of the two that =
I=20
gave:

/* this is totally untested, but it would be great if it worked */
function isvgNonNumericSplit () {
=A0 =A0 var preClean =3D new Regexp('^\D+');
=A0 =A0 var postClean =3D new Regexp('\D+$');
=A0 =A0 this.replace(preClean, '');
=A0 =A0 this.replace(postClean, '');
=A0 =A0 return this.split('\D+');
}
// add to the interface
String.prototype.isvgNonNumericSplit =3D isvgNonNumericSplit;

We could perhaps have a global isvgUtilRegexp object hanging around to=20
contain all the generally useful Regexps we may use. This would avoid hav=
ing=20
to redefine them everytime, and would allow us to fix Regexp bugs far mor=
e=20
easily (notably if we start running into unforeseen encoding problems, wh=
ich=20
wouldn't suprise me).

function isvgUtilRegexp () {
    this.version =3D '0.0.1'; // version interfaces ?
    this.nonNumericStart =3D new Regexp('^\D+');
    this.nonNumericEnd =3D new Regexp('\D+$');
    // etc.... follows long definitions
    return this;
}
var globalUtilRegexp =3D new isvgUtilRegexp;

We would then have:

function isvgNonNumericSplit () {
=A0 =A0 this.replace(globalUtilRegexp.nonNumericStart, '');
=A0 =A0 this.replace(globalUtilRegexp.nonNumericEnd, '');
=A0 =A0 return this.split('\D+');
}
// add to the interface
String.prototype.isvgNonNumericSplit =3D isvgNonNumericSplit;

I know that it looks stupid given the simplicity of this example, but if =
we=20
want this thing to grow we might just as well put all reusable regexen=20
together.

> What would the Perl split do in the case I described?

It'd give an empty first element, but no empty last element (unless you a=
dded=20
a negative LIMIT parametre). Split is a complex little thing in pretty mu=
ch=20
all languages.

--=20
_______________________________________________________________________
Robin Berjon <ro...@kn...> -- CTO
k n o w s c a p e : // venture knowledge agency www.knowscape.com
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